N peters



3 Sheets-Sheet 1.

(No Medal.)

W. M. HOFFMAN.

v PUTTING OUT MACHINE.- No. 288,941. Patented Nov. 20, 1883.

Witnesses. Inventor; fiM' v T M]. Jh W k mxr fl /a I I N, PETERS.PiwlwLm-mgrumm WAlNllgtnn, n40.

3 SheetsSheet 2.

(N0 Modem W. M. HOFFMAN.

PUTTING OUT MACHINE. No. 288,941. Patented Nov. 26, 1883.

wltnesses. Inventor.

Q v W Me HFA M z/ mwjau h (No Model.) 3 Sheets-Sheet 3.

W. M. HOFFMAN. r

, U PUTTING OUT MACHINE.

No. 288,941. Patented Nov. 20, 1883.

Witnesses. Inventor M75, 25L W i WWJAQW 6 144 4 4 UNITED STATES PATENTOrrrcn.

XVILLIAM M. HOFFMAN, OF BUFFALO, NEW YORK, ASSIGNOR TO SCHOELL- q, KOLPF& (30., OF SAME PLACE.

PUTTING-OUT MACHINE.

SPECIFIC ATION forming It will be known that a skin, after being.

taken out of the tanning-vat, or previous to I 5 being hung up to dry,is put through another process, technically termed putting out. By thismeans the small pieces of flesh or other imperfections that adhere tothe flesh side of the skin are scraped off, and the grain side of theskin is rendered smooth and its appearance otherwise improved, all ofwhich will be fully and clearly hereinafter shown by reference to theaccompanying drawings, in which Figure 1 is a back view of the machine;Fig. 2, a side elevation, showing a portion of one of the pulleys brokenaway, so as to expose the pinion and spur-wheel on the other side of it.Fig. 3 is a crosssection through the machine, and Fig. 4 is a frontelevation of the machine complete.

The frame a of the machine is preferably constructed of wood.

a is the putting-out cylinder. It is provided with the spiral blades to.The cylinder c is usually made of wood, and the spiral blades are ofthin strips of brass rigidly secured thereto. They are arranged, asshown, so as to meet near the center of the cylinder, so that thespirals on each side run in opposite directions. The object of this isto cause the skins to be stretched each way during the operation of themachine. This cylinder is provided with journals of a arranged in boxesmade in any well-known way. The drivin pulley a (see Fig. 1) isconnected directly to the journal or shaft of, and consequently with thecylinder.

(1. represents a small pulley rigidly secured to the journal or shaft oThis pulley is con- 50 nested by a belt, I), to a larger pulley, b. On

part of Lettersratent No. 288,941, dated November 20, 1883.

Application filed September 1, 1883. No model.)

the shaft of the pulley b is secured a smaller pulley, b From thispulley a belt, b passes to the pulley b". On the inside of the pulley I)is a pinion, 11 which gears into a spurwheel,

b". This spur-wheelie connected to the shaft 5 5 c of the wooden roller0. (See Fig. 3.)

The object of the belts just described is to give a much slower motionto the roller c' than the motion of the cylinder a, the motion ofthe'cylinder being about three hundred and 6c fifty revolutions, and themotion of the roller 0 about twenty-five. On the inside of the frame isa pinion, 0', either near one or both sides of the frame. It isconnected to the shaft of the roller 0 and turns with it.

0 represents a roller made of some yielding material-indiarubber, forinstance. This 7 roller is mdunted in boxes in the slotted arms 0. Thesearms are connected to the arms o by means of a bolt and nut, the boltpassing 7o through the slots 0 into the arms 0 so that the roller may bethereby rigidly secured to the said arms and be capable of an adjustmentto or from them. The arms 0 are rigidly fastened to the shaft (1, whichshaft is mounted in 7 5 boxes (1. The boxes d are set in place (seeFigs.

2 and 3) so as to be capable of a movement up or down, and are kept downby a spiral or other spring, (1". The roller 0 is made of a hard wood,and is secured in boxes in the frame. (See Figs. 2 and-3.)

(1 represents a slotted arm secured to the arm 0 by means of a bolt, (1,which passes through the slot (2. It will be seen that this arm is madeadjustable. Its object is to secure the adjustment of the roller 0 to orfrom the putting-out cylinder, after which it is rigidly secured inplace by the bolt (1". There are two arms c -0ne at each sideof themachine.

At the outer ends of the arms is jointed by a 0 pin, 6, in the usualway, a connecting-rod, eone on each arm. The opposite ends of theseconnecting-rods are secured in a similar way by pins 6 to the arms 6 ofthe foot-step e". The arms '6 are connected to a shaft, o Acounter- 5Weight, f, on the'shaft 6 causes the foot-step to rise after thepressure of the foot is taken off of it.

In operating the machine the skin is thrown over the roller 0* and theroller started slightly I00 IOv by hand,until it is far enough in to becaught between the rollers c and c. A pressure on the foot-step thenbrings the two rollers together, and still greater pressure brings theroller and the skin against the cylinder by lifting the box (1 upagainst the spring (1,

which cylinder is revolving rapidly and cleans way, thereby completingit. By this arrangement the skin is first gripped firmly between therollers 0 c, which hold it and cause it to move with the required speed.By increasing the pressure slightly on the foot-step the roller 0" isbrought toward the putting-out cylinder and the skin is brought incontact with it, and is slowly carried past it, moving ina directioncontrary to the movement of the putting-out cylinder. One advantage inthus being able to first bring the rollers 0 0 together is that itenables the operator to wring out the water from the skin, if at anytime necessary, before bringing the skin in contact with the puttingoutcylinder, which is often necessary on account of holes in the, skin. Itwill also be noticed that as the rollers c c are brought together thegear-wheels c g are brought into a gear, and as the roller 0 iscontinually turning it thereby imparts its movement to the roller 0until released from it. The skin being put over the roller 0' is alwaysin sight, and thereby enables the operator to let off the pressure ofthe skin from the putting-out cylinder when coming to a hole or a spoton the skin that may be tearing.

I claim as my invention 1. In a putting-out machine, a putting-outcylinder and its operating mechanism, substantially as described, incombination with the rollers c 0', arms a, mounted in a spring box, andhaving the roller 0 adjustably c011- nected thereto, and a suitablefoot-step for operating the arms, substantially as specified.

2. The rollers c c", the roller 0 being connected to the arm 0 incombination with the spring-box d, and foot-step and its operatingconnections for the purpose of holding the skin between the rollers cc", or holding' it between them and forcing it against the putting-outcylinder or releasing it, substantially as described.

WM. M; HOFFMAN.

Witnesses:

JAMES SANGSTER, J. MLCALDWELL.

